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Objective

This proposal is aimed at developing a new method based on quantitative depth profile analysis by DC GD-OES, which permits rapid multi-element analysis of very thin films (passive films on stainless steels, conversion layers on plane and coated steel sheets,), with the following technical specifications: minimum information depth about 5nm; multi-element capability of 20 elements in one measurement; quantification of major and minor elements with an accuracy better than 10%; analysis time (measurement + quantification) of a few minutes for very thin layers.